Vulnerability · Published Sep 5, 2026 · Assigned by VulnCheck
CVE-2025-15614ugrep before 7.6.0 Heap Buffer Over-read via .Z decompression
Low 3.3
In plain English
A low-severity out-of-bounds read in ugrep from Genivia. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 93.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
ugrep before 7.6.0 contains a heap buffer over-read vulnerability in the LZW decompressor when processing crafted .Z archive files. Attackers can supply malformed .Z files that cause the decompressor to read one byte past the allocated heap buffer, potentially crashing the process.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ugrep | no fix listed | DEBIAN-CVE-2025-15614 |
| Debian:13 | ugrep | no fix listed | DEBIAN-CVE-2025-15614 |
| Debian:14 | ugrep | 7.6.0+dfsg-1 | DEBIAN-CVE-2025-15614 |
| Ubuntu:22.04:LTS | ugrep | no fix listed | UBUNTU-CVE-2025-15614 |
| Ubuntu:24.04:LTS | ugrep | no fix listed | UBUNTU-CVE-2025-15614 |
| Ubuntu:26.04:LTS | ugrep | no fix listed | UBUNTU-CVE-2025-15614 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
References
- GitHub Issue #511 issue-tracking
- Patch Commit patch
- Vulnerable getcode() read at src/zopen.c:673 (v7.5.0) technical-description
- ugrep v7.6.0 Release Notes release-notes
- https://github.com/Genivia/ugrep product
- VulnCheck Advisory: ugrep before 7.6.0 Heap Buffer Over-read via .Z decompression third-party-advisory